Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c5bc1e2ba9af6ac…

MALICIOUS

PDF

33.4 KB Created: 2020-08-22 02:59:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 01d06cfef3c37d98fcf1c06b05a86cfc SHA-1: 3e9f068c7b5992fec6b1f89678079ae221bd37e1 SHA-256: 5c5bc1e2ba9af6ac56090749e45d2a4631f2a70ab80387670674522e7bb72560
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple heuristics indicating malicious redirector links and a link farm, pointing to a phishing or malware distribution attempt. The embedded URL `https://ttraff.com/pify?keyword=slope+intercept+form+practice+test` is identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to a 'slope intercept form practice test', suggesting a lure to entice users to click the malicious link. No scripts were extracted, but the PDF structure itself facilitates the redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.com/pify?keyword=slope+intercept+form+practice+test In PDF document text
    • http://debatekud.erinphoffman.com/uploads/1/3/2/3/132303189/kedulafedefamusitufa.pdfIn PDF document text
    • http://files.strivetriclub.com/uploads/1/3/0/9/130969427/fazarikizuw.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7409/2198/files/73672987350.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3331/3958/files/40991464741.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/5611/4337/files/joviju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0174/1463/files/86980224671.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5685/5190/files/72565177276.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5802/6904/files/compelling_wealth_management_conversations.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2032/8864/files/88641653781.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9884/7896/files/poluvapofuwuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7541/2902/files/bovaruvuvom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2795/4854/files/dms_to_dd.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bukidesokat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5378/3957/files/94651823637.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 2

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000046ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x46AE 5264 bytes
SHA-256: e768bc9ccd77a60418fa623f0b4ecac4047537365acf70415c79b187107ab713
font_01_sfnt_off00005872.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5872 9620 bytes
SHA-256: 02f70e3560bf1d4d692489d9345822057a87a0c31432df5e00374dba74961188

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